Home / 1,075,426.80-1,485,418.68-788,492.40

Finding the Fourth Proportional to 1,075,426.80, 1,485,418.68 and 788,492.40

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Solution

The fourth proportional to 1,075,426.80, 1,485,418.68 and 788,492.40 is: 1,089,094.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075,426.80 : 1,485,418.68 = 788,492.40 : x
  2. Step 2: Convert to fraction form
    1,075,426.80/1,485,418.68 = 788,492.40/x
  3. Step 3: Cross multiply
    1,075,426.80x = 1,485,418.68 × 788,492.40
  4. Step 4: Simplify right side
    1,075,426.80x = 1,171,241,339,998.03
  5. Step 5: Solve for x
    x = 1,171,241,339,998.03/1,075,426.80
  6. Step 6: Final answer
    x = 1,089,094.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.